One vertex per element, one color per generator, with an edge from x to x·s.
(10,12)(14,15)(17,18)(19,23)(20,29)(21,31)(22,26)(24,27)(25,30)(28,32) involution — undirected(2,6)(3,4)(9,10)(11,15)(12,13)(14,16)(17,19,22,21)(18,23,26,31)(20,27,30,28)(24,25,32,29)(1,2)(3,8)(4,7)(5,6)(9,11,13,16)(10,14,12,15)(17,20)(18,24)(19,27)(21,28)(22,30)(23,25)(26,32)(29,31)(1,3,5,4)(2,7,6,8)(11,16)(14,15)(17,20)(18,25)(19,28)(21,27)(22,30)(23,24)(26,29)(31,32)(1,4,5,3)(2,7,6,8)(9,12,13,10)(11,15,16,14)(17,19,22,21)(18,23,26,31)(20,27,30,28)(24,25,32,29)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.